caa a22 4500 445872616 CHVBK 20180317145517.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1140/epja/i2011-11123-3 doi (NATIONALLICENCE)springer-10.1140/epja/i2011-11123-3 Quantal description of instabilities in nuclear matter in a stochastic relativistic model [Elektronische Daten] [O. Yilmaz, S. Ayik, A. Gokalp] Spinodal instabilities and early development of density fluctuations are investigated in the stochastic extension of Walecka-type relativistic mean field including non-linear self-interactions of scalar mesons in the quantal framework. Calculations indicate that at low temperatures T = 0-2 MeV, the initial growth of density fluctuations and hence the initial condensation mechanism occur much faster in quantal calculations than those found in the semi-classical framework. However, at higher temperatures T = 4-5 MeV, semi-classical calculations provide a good approximation for quantal description. Calculations show that the typical size of initial condensation regions is not very sensitive to the temperature, but depends on the initial baryon density. These findings are consistent with previous investigations carried out in the non-relativistic approach with an effective Skyrme interaction. SIF, Springer-Verlag Berlin Heidelberg, 2011 Yilmaz O. Physics Department, Middle East Technical University, 06531, Ankara, Turkey aut Ayik S. Physics Department, Tennessee Technological University, 38505, Cookeville, TN, USA aut Gokalp A. Physics Department, Middle East Technical University, 06531, Ankara, Turkey aut The European Physical Journal A Springer-Verlag 47/10(2011-10-01), 1-9 1434-6001 47:10<1 2011 47 10050 https://doi.org/10.1140/epja/i2011-11123-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epja/i2011-11123-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yilmaz O. Physics Department, Middle East Technical University, 06531, Ankara, Turkey aut NATIONALLICENCE 700 1- Ayik S. Physics Department, Tennessee Technological University, 38505, Cookeville, TN, USA aut NATIONALLICENCE 700 1- Gokalp A. Physics Department, Middle East Technical University, 06531, Ankara, Turkey aut NATIONALLICENCE 773 0- The European Physical Journal A Springer-Verlag 47/10(2011-10-01), 1-9 1434-6001 47:10<1 2011 47 10050 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer